Dungeons of La Valette Castle are located underground in the keep. They consist of a vast network of tunnels, infested with rats, droppings and human remains of those people who have lost their lives here. The tunnels branch out on two levels. In addition to cells, there is also a lower torture chamber and an interrogation room.
Other than regular criminals and thieves, political dissidents are captured and detained here. Recently, after the attack by King Foltest's army, the castle passed into the hands of Temerians, who imprisoned the rebels of the La Valettes and their allies. Among these are the Baroness Mary Louisa and her son Aryan.
Geralt of Rivia has also been held and handcuffed in one cell of the dungeons. At the beginning of The Witcher 2: Assassins of Kings, the reason for his captivity is unknown until Vernon Roche enters the cell to question him.